/**
 * Created by IntelliJ
 * Author:熊磊
 */
public class Test {
    public static void main(String[] args) {
        A a = new A();
        A a1 = new A();
        a.i=1;
        a1.i=2;
        A b = a;
        b=a1;
        System.out.println(a.i);
        System.out.println(a1.i);
        System.out.println(b.i);
    }
}
class A{
    int i;

}
